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Port 3050 (gds-db, gds_db)

IANA assigns port 3050 to gds-db, gds_db: gds_db IANA assigned this well-formed service name as a replacement for "gds_db"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
gds-db TCP gds_db IANA assigned this well-formed service name as a replacement for "gds_db". Madhukar N Thakur -
gds_db TCP gds_db
This entry is an alias to "gds-db". This entry is now historic, not usable for use with many common service discovery mechanisms.
Madhukar N Thakur -
gds-db UDP gds_db IANA assigned this well-formed service name as a replacement for "gds_db". Madhukar N Thakur -
gds_db UDP gds_db
This entry is an alias to "gds-db". This entry is now historic, not usable for use with many common service discovery mechanisms.
Madhukar N Thakur -

Check what is listening on port 3050

Linux: is anything listening on TCP 3050?
sudo ss -tlnp 'sport = :3050'
Linux: UDP 3050
sudo ss -ulnp 'sport = :3050'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3050
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3050 '
Windows (Command Prompt)
netstat -ano | findstr :3050
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3050 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3050
From Windows
Test-NetConnection HOST -Port 3050
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3050

Block port 3050 in the firewall

ufw
sudo ufw deny 3050/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3050 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3050 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3050' -Direction Inbound -Protocol TCP -LocalPort 3050 -Action Block
ufw
sudo ufw deny 3050/udp
iptables
sudo iptables -A INPUT -p udp --dport 3050 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3050 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3050' -Direction Inbound -Protocol UDP -LocalPort 3050 -Action Block

Related ports

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.